/Engine/Plugins/Runtime/GeometryProcessing/Source/DynamicMesh/Public/Parameterization/PatchBasedMeshUVGenerator.h
Incrementally combine existing mesh patches into larger patches that meet the various criteria defined by the parameters above
false if catastrophic failure ocurred (ie IslandsOut is invalid) or if Progress was cancelled
bool ComputeIslandsByRegionMerging ( [FDynamicMesh3](API\Runtime\GeometryCore\DynamicMesh\FDynamicMesh3) & TargetMesh, [FDynamicMeshUVOverlay](API\Runtime\GeometryCore\DynamicMesh\FDynamicMeshUVOverlay) & TargetUVOverlay, const [FMeshConnectedComponents](API\Runtime\GeometryCore\Selections\FMeshConnectedComponents) & InitialComponents, [TArray](API\Runtime\Core\Containers\TArray)< [TArray](API\Runtime\Core\Containers\TArray)< int32 >> & IslandsOut, [FProgressCancel](API\Runtime\GeometryCore\Util\FProgressCancel) * Progress )